beat (one) hollow
To defeat an opponent easily and/or by a wide margin. Primarily heard in UK, Australia. The final score was 17-1? Wow, we really beat that team hollow!
beat hollow
see under beat the pants off.
beat someone hollow
BRITISHIf you beat someone hollow, you defeat them completely. Radio's attempts at horror are generally beaten hollow by the terrifying capabilities of cinema. If she hadn't been wearing high-heeled shoes, she would have beaten him hollow.
beat someone hollow
defeat or surpass someone completely or thoroughly.beat somebody/something ˈhollow
beat somebody easily in a contest, etc.; be much better than somebody/something: As a cook he beats the professionals hollow.